Date: Wed, 21 Aug 2019 15:38:57 -0700 From: John Baldwin <jhb@FreeBSD.org> To: mike tancsa <mike@sentex.net>, freebsd-stable@freebsd.org Subject: Re: svn commit: r351246 - in stable: 11/sys/opencrypto 12/sys/opencrypto Message-ID: <a2d1066a-a6e4-9316-4d5b-0bbe46e18c11@FreeBSD.org> In-Reply-To: <eb53fa90-5dfb-8341-f402-d4b2f7a71b5e@sentex.net> References: <201908200130.x7K1UajV079446@repo.freebsd.org> <c31bca3a-dd62-d828-5f57-30b4e210f084@sentex.net> <3101bd14-316a-baaa-6269-297903c45f23@FreeBSD.org> <eb53fa90-5dfb-8341-f402-d4b2f7a71b5e@sentex.net>
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On 8/21/19 9:08 AM, mike tancsa wrote:
> On 8/21/2019 12:00 PM, John Baldwin wrote:
>> dtrace -n 'fbt::_gone_in:entry { @counts[curthread->td_proc->p_comm] = count()'
>
> Thanks, I am not familiar with dtrace at all. This command gives a
> syntax error
>
> 0(cage)# dtrace -n 'fbt::_gone_in:entry {
> @counts[curthread->td_proc->p_comm] = count()'
> dtrace: invalid probe specifier fbt::_gone_in:entry {
> @counts[curthread->td_proc->p_comm] = count(): syntax error near end of
> input
> 1(cage)#
Oops, I forgot the closing }. First, do "dtrace -l | grep _gone_in" to make
sure dtrace is loaded. You should see something like this:
# dtrace -l | grep _gone_in
87003 fbt kernel _gone_in entry
87004 fbt kernel _gone_in return
98682 fbt kernel _gone_in_dev entry
98683 fbt kernel _gone_in_dev return
Then this should work:
# dtrace -n 'fbt::_gone_in:entry { @counts[curthread->td_proc->p_comm] = count() }'
dtrace: description 'fbt::_gone_in:entry ' matched 1 probe
--
John Baldwin
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